Linux Kernel  3.7.1
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init_task.c
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1 /*
2  * This is where we statically allocate and initialize the initial
3  * task.
4  *
5  * Copyright (C) 1999, 2002-2003 Hewlett-Packard Co
6  * David Mosberger-Tang <[email protected]>
7  */
8 
9 #include <linux/init.h>
10 #include <linux/mm.h>
11 #include <linux/fs.h>
12 #include <linux/module.h>
13 #include <linux/sched.h>
14 #include <linux/init_task.h>
15 #include <linux/mqueue.h>
16 
17 #include <asm/uaccess.h>
18 #include <asm/pgtable.h>
19 
20 static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
21 static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
22 /*
23  * Initial task structure.
24  *
25  * We need to make sure that this is properly aligned due to the way process stacks are
26  * handled. This is done by having a special ".data..init_task" section...
27  */
28 #define init_thread_info init_task_mem.s.thread_info
29 
30 union {
31  struct {
32  struct task_struct task;
34  } s;
35  unsigned long stack[KERNEL_STACK_SIZE/sizeof (unsigned long)];
36 } init_task_mem asm ("init_task") __init_task_data =
37  {{
38  .task = INIT_TASK(init_task_mem.s.task),
39  .thread_info = INIT_THREAD_INFO(init_task_mem.s.task)
40 }};
41